Machine for mercerizing yarn in skeins.



P.HAHN. MACHINE FOR MERCERIZING YARN IN SKEINS.

AEPPLIOATION FILED FEB. 6, 1912.

; 1,053,91 1. Patented Feb. 18, 1913.

I k C 74 1 in 6/16,! i I 722 7?]? far.-

To all whom it may bo'noe m:

STATES PATENT OFFICE.

ra't rn HAHN, or NIEDERLAHNSTEIN,GERMANY.

. macnrnn res mnmcnnrzmo' YARN m sxnms.

Be it known that I, 'PAUL HAHN, acitizen of the Empire of Germany, residing at 'Niederlahnstein-onthe-Rhine, in the Empire of Germany, have invented a new and useful Machine for Mercerizing Yarn in skeins, of which the following is a specification.

The machines hitherto employed for mercerizing yarn in skeins may be plassified in two classes. With those of thev one'klnd, which are, mostly employed, the skeins of yarn laid around the two stretching rollers are immersed V ina horizontal position, the two rollers being arranged in the same hor1- .zontal plane, and dipwith the skein only so 1 far into the lye or the rinsing water respec tively, that only the lower portion of the tlcal'plane and the skein laid around them dips together with the lower, not displace- ,able roller into the liquid beyond the uppermost point'of the periphery of the latter. Both these classes of machines show the same disadvantage, namely that the skein on the rollers; considered with "regard to the dif- -ferentportions of its length will come in contact with the lye-or the rinsing water at such-different times, that a considerable difliquid, it is therefore obvious that the parts of the yarn which first dip into the liquid will immediately begin to shrink under the influence of the lye, while the following parts, which have not yet dipped into the liquid, will be stretched in consequence of the shortening of the length of the skein caused by such shrinking, afid this stretching will be the greatest with the portion of the yarn coining last of all in contact with the lye. The part of the yarn dipping first into the lye will therefore absorb under otherwise equal conditions more lye and shrink more than the part dipping last of all into the lye, so that the silky gloss. produced in and on theyarn by the action of the lye will be very unequally distributed. Similar effects are also observed at the im- Speciiicationot Letters-Patent. f P t t d b, 18, 1913, Application filed February 6, 1912; Serial No. 676,378;

mersion of the yarn into the rinsing liquid, such as hot water, 'oron the yarn being sprinkled with the latter. Where the innpregnation-commences or where the drops of hot water fall first, the effect of the lye will be moreconspicuous orwill be interelsewhere, so that differences in the appearances of the finalproduct will result, which My invention consists of an improved ma chine for merceriz ing! yarn in skeins, in

.which the two rollers, over which a skein is laid, aredisposed in the same vertical plane. According to my'invention the skein on the two rollers is brought into contact with the respective liquid (lye, rinsing water) at once and .all over its length, so that the time of impregnation or, rinsing is the same for the'whole'length,'that is the whole skein of yarn is completely and uniformly covered with the lye or the-rinsing liquid respectivelyall over at one time. I willv now proceed todescribe my invention with reference to the accompanying drawing, in which Figure 1 is a vertical longitudinal section through a part of an improved yarn mercerizing machine, the sprinkling device being moved aside, and Fig. 2-is partly a horizontal section through and partly a plan view of the same, only so much being shown as is sufiicient for the understanding of the invention. I

The two superposed rollis a and b can I be set to rotate by the machine in' any known manner and the lower roller 12 may be mounted on ashaft turning in stationary bearings, while the upper roller a may be fastened on'a shaft turning in bearings, which can be vertically shifted, so as 'to move the roller a downward for the exchange of the skein and upward for stretch;

1 -'pletely encircle the'skein h laid around thetwo :rollers a and b on -t-heeasing cibeing moved into therespeetwe position shown in fits the inside of sieve-d and has the same number of hole'sTf -"e as' tlie latter, s'o

ti'on shown in Fig 1"th eslide e closes the holes dhd of the sieve Any known ,means could be provided for moving the slide 6 in either direction-relatively to the casing 0.1 The slide e isadapted to com Fig. 2. Or the" casing c (which is-ishown to be provided with feet 'c" -i:=-standin'g on thebottom of a 'tank-j) may :be sta'tionary and t-hemachine carrying the two'rollers aand may be arran ed-for longitudinal motion,

so as to move t e two rollers 11 and b with theskein it into the space of the slide e and out of the same. Any known means could beprovide'd for effecting this relative motioii of the machine or, the sprinkling defvice. "The casing cmay be connected with a "tank f (omitted from Fig. 2) above by means of a tube g and a cock g orthe like. The tank fmay be assumed to contain thely'e,"w hile-another tank m (Fig. 2) above :oont'ains the-rinsing liquid and may be connectedwith'the c'asing c by means of a tube land avalve k. Thec'asing c is below provided with a cock i opening intothe tank j; Some pump (not; shown) may be providedfor eonstantly raising the liquid from the; tank j below andgdischarging -it into thehas been filled with lye 'from the tank f It. '1s"evident, that after a fresh skein IL hasbeen put around the two, rollers and afover the skein-or he skein'has been moved as the case may be, and a ter the casing'c through the tube g and the cock 9, it is only necessary to so shift the slide-e as to open the holes (1 d} of the sieve (I, when the lye will simultaneously emerge under pressure from all the holes (I d and impregnatqthe 'rotated skein h on all-parts of its whole "lengthso intensely and uniformly that a di fferenoe in the e ect of the lye on the'different portions of the skein will be out of question. After the skein h hasbeen sprayed fora sufiieiently long time, the slide 6 is sliijfitkecli-bael i into its initial position for that for the position of the slide 6 shown in ,Eig. {-2 its holes e 0 register with the holes- (I d" of the sieve d, While in theother posiclosing theholes d d of the. sieve d. Then theieock' g is closed and the eqekgjmopened fqg diseharging the lye from the casing c.

iifterward the cock 2' is again closed and the V easing c is filled with therip sin waterfrom the tank m by opening: sheen-v87. Thereupon the slide eis slnftdqforoperiing the holes d d of the sieve d,-whenj-the. skein will be simultaneously sprinkled on-all of its parts. with rinsing -watenwhich will wash off thesu-rplus'lye. ,After therollers a b and with them the skein h have been withdrawn from the casing a the liquid can :be squeezedout andthe yarn be further adapted tostretchyarnrskeins and to be To tated, of a sieve adapted to encircle the yarn skein on sald two rollers, .aieasing surround- -ing said sieve and adapted to be thereby ClOSfid on theinsideyand'aslide fitting the inside of said sieveandprovided with perforations adapted toregistei -with'- the holes of said sieve in one position andto' close the holes in the otherposition; i 2. In a-yarnmeroerizing v maehine, the combination with two superposed jrollers adapted to stretch yarn skeins and to be i rotated around their axes, of a seive. adapted to encircle the yarnskein on (said; two rollers and to be displaced-relatively thereto soas to uneover the yarn skein, a casing surrounding said sieve-arid adapted to .be thereby closed on the inside,"a slide fitting the inside of said sieve and adapted to beshifted relatively thereto, said slide having per forations adapted to register .with the holes offsaid sieve'in one position and to close the holes-in the other position, means for fillin said casing with a liquid, and means for iseharging the liquid from said casing. In testimony whereof Ilhe'reto atlix my signature in presence of two witnesses.

. PAUL HAHN Witnesses:

ADOLPH THELEN, LOUIS VANDORN.

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Washington, D. G."[ ,5. 

